Pulverizer



F. M. ILER PULVERI ZER Feb. 11, 1936.

Filed June 6, 1932 2 Sheets-Sheet l P 0 w e w j.

F. M. ILER 2,030,839

PULVERIZER Feb. 11, 1936.

Filed June 6, 1952 2 Sheets-Sheet 2 Patented Fel 11 1936 UNITED STATES PULVERIZEB.

Franklin M. Iler, Cleveland, Ohio; Eleanor 0. Her administratrix of said Franklin M. Iler, de-

ceased Application June 6, 1932, Serial No. 615,545

3 Claims.

The present invention relates to pulverizers or crushers adapted to reduce rock or other crushable material to a very fine pulp or powder, and more particularly to a rotary disc pulverizer in which the discs are given an oscillating movement relative to each other in addition to their relative rotational movement.

An object of the present invention is the provision of a novel pulverizer of the type referred to which will be simple in construction, and substantially dust-tight, thereby preventing the escape of dust during operation.

Another object of the invention is the provision of a novel pulverizer of the type referred to, provided with means for adjusting the discs relative to each other whereby the fineness of the pulp may be varied, and a forced lubrication system for the various bearings whereby the life of the machine may be extended.

Another object of the present invention is the provision of a novel oiling system for the various bearings of a pulverizer of the type referred to.

The invention resides in certain novel details of construction and combinations and arrangements of parts, and further objects of the invention will be apparent to those skilled in the art from the following description of the preferred embodiment thereof described with reference to the accompanying drawings, in which Fig. 1 is a side elevation of a pulverizer embodying the present invention with the hopper shown in dotted lines in its elevated position;

Fig. 2 is a plan View of the machine shown in Fig. 1 with the dust covers removed to show the interior thereof;

Fig. 3 is an end elevation in Figs. 1 and 2 with the position;

Fig. 4 is a view similar to Fig. 1 with portions broken away to illustrate the arrangement of the various parts;

Fig. 5 is a section approximately on the line 5-5 of Fig. 4, and.

Fig. 6 is a section on the line 6-6 of Fig. 1.

Similar reference characters-designate correof the machine shown hopper in its elevated sponding parts throughout the several figures.

of the drawings.

Referring to the drawings the main frame or base of the machine is indicated in general by the reference character ID. A main drive shaft ll rotatably supported in bearings l2 and I3 formed in opposite ends of the frame Ill carries a revolving disc l5 secured as by three bolts [6 to aflanged collar l1 fixed to one end of said shaft, and tight and loose pulleys l8 and I9, respectively, on the other end thereof. As illustrated the machine is adapted to be driven by a belt, but it is to be understood that other well known means may be employed for driving the shaft H. An oscillator member 20 pivotally supported at the rear or right hand end of the machine, as viewed in Figs. 1, 2 and 4, on pivot pins 2| secured in suitable apertures provided in bosses 22 on the frame it is adapted to be oscillated about the axis of the pivot pins 2| by connecting rods 23, as will be hereinafter described. The oscillator member 25 is guided near the front end thereof by the engagement of guide members 24 formed integral therewith with guide surfaces 25 formed on the frame Ill.

A hopper member 28 pivotally supported on a hopper hinge pin 29 secured in a boss 56 on the top of the oscillator 28 is adapted to be moved from its operating position, shown in full lines, to an inoperative position, shown in dotted lines, see Fig. 1. A stationary disc 3i provided with a crushing surface 32 adapted to cooperate with a crushing surface 33 on the rotating .disc I5 is secured to the hopper 28 as by the bolts 34. The

hopper is held in its operating position by the eye bolts 35 secured to the oscillator 20 as by the pins 36, and burr nuts 31 threaded on the eye bolts 35 and engaging lugs. 58 formed integral with the hopper. The crushing surfaces 32 and 33 are curved and preferably lie in the surface of a sphere, the center of which is the intersection of the axis of the main shaft II and the axis about which the oscillator is pivotally supported. The central part of each disc is hollowed out to provide a receiving chamber for the material to be pulverized and the side walls of the receiving chamber are provided with ridges 4B and grooves M to facilitate the pulverizing operation. A projection 42 on the hopper 23 has a channel 13 formed therethrough which communicates with the material receiving chamber formed by the discs and through which the material to be pulverized is introduced. A cover 44 positioned over the channel 43 prevents the escape of dust. A pulp pan 46 secured to the bottom of the hopper 28 by spring members 41 receives the pulverized material and forms a dusttight closure for the lower part of the chamber formed by the parts of the oscillator and hopper members which enclose the discs l5 and 3|, etc. A cover plate 43 secured to the oscillator 20, as by the screws 49, forms the rear wall of the last mentioned chamber. A slot 50 in the plate 48' permits pivotal movement of the oscillator 20 relative to the shaft l l.

A worm 54 provided with a thrust collar 55 formed integral therewith is fixed to the main shaft II and the revolving disc I5 is adjusted toward and from the stationary disc 3| by rotating an adjusting collar 56 which abuts and forms a stop for the thrust collar 55. The adjusting collar 56 is threaded onto a boss 51 formed on the frame It] coaxial with the shaft I l and is retained in any adjusted position by an adjusting handle 58 adapted to be threaded into any one of 60 access to the rear end of the frame ID and is pro vided with a slot63 through which the handle 58 projects. The slot 63 is closed by a sliding dust cover 64 which maybe rotated; 180 from'the position shown in Fig. 6 when the handle 58 is g in the frame Hi communicates moved'to the other side machine.

A worm wheel 68 provided with eccentric hubs 69 is rotatably mounted on a shaft 'lll supported by the frame i S, and is continuously in mesh with the worm cs. The'lower ends of the connecting rods 25, previously referred to, are mounted on the eccentric hubs 69 of the worm wheel 68. From the construction just described it will be apparent that the oscillator 26 will be moved about its pivotal axis upon rotation of the shaft ll through the worm gear 54, worm wheel 68 and connecting rods 23. An opening 12 in the front part of the oscillator 20 is covered by a'dust cover 13. 7

Front and rear oil recesses or channels '55 and 16 respectively, are formed in the frame In directly above the bearings l2 and i3 and have passages ll communicating therewith and with said bearings. Apertures H, one of which is shown in Fig. 4, communicates with the guide surfaces 25 on the frame it and delivers oil thereto from the channellB. Oil from the oil'reservoir in the bottom of the frame is pumped to the channel it by an oil pump and flows from the channel E5 to the channel 16 by gravity through a tube i3 communicating with said channels. The height of the oil in the channels '55 and I6 is determined by overfiow apertures 19 formed in the sides thereof. The oil pump referred to comprises a hollow rod 83 having a longitudinal passage 8| slidably positioned in a cylindrical bore 83 in the frame 10. The passage BI is closed at its up-,- per end by an adjustable screw 82 threaded in the rod 89 and locked in any adjusted'position by a lock nut83 and at its lower end by a ball valve 86 adapted to engage a valve seat formed at the lower end of said rod. The rod 8!] is continuously urged in an upward direction by a compression spring positioned in the lower part of the bore 83 and is reciprocated' in said bore by the engagement. of the head of the screw 82 with an abutment 3'5 on the oscillator Zilupon movement of said oscillator about its pivotal axis. An opening or port 85! formed in the frame Ii] communicates with the oil reservoir in the bottom of the frame and the bo re 82 just below the lower end of the rod 8% when the said rod is in its uppermost position. An opening or port 536 also formed with the channel 15 and thepassage 8! through a recess 92 formed about the rod til aperture 93in said rod f communicates with said recess and the passage 8!. The construction of the oil pump is such that when the rod is in its extreme upper posi tionthe port W is open and oil flows from the reservoir into the bottom of the bore 32, as the rod 89 descends under the action of the oscillator 2!! the port E9 is closed thereby, and the oil in the bottom of the bore is forced past the valve 84,

of the center line of the through the passage 8 I, the aperture 93, the recess 92, and the port 90 into the chamber-15.

The preferred embodiment of the invention has been illustrated and described, but I do not wish to be limited to the particular construction shown, which may be varied within the scope of this inventiomand I particularly point out and claim as my invention the following:

1. In a machine of the character described,

the combination of a frame, a plurality of bosses formed integral with said frame, a shaft rotatably supported in said bosses, a pulverizing disc carried by said shaft, a member pivotally supported by said frame, means operatively connected to said shaft for oscillating said member about its pivotal support upon'rotation thereof, a second pulverizing disc carried by said member cooperating with the first mentioned pulverizing disc, said frame being provided with an oil reservoir in the base thereof and a plurality of oil receiving recesses above said bosses, a tube connecting said oil receiving recesses, means for delivering oil from said recesses to the bearings for said shaft,

, a reciprocating pump for pumping oil from said reservoir into one of said oil receiving recesses, and means for operatively'conne'cting said pump and said member whereby said. pump is actuated by the oscillation of said member;

. 2. In a machine of the character described, the

combination of a frame, a plurality of bosses formed integral with said frame, a shaft rotatablysupported in said bosses, a disc provided with a central recess carried by said shaft, a member pivotally supported by said frame, means operative'ly connected to said shaft for oscillating said member about its pivotal support upon rotation thereof, said disc having a crushing surface 1ying in the surface of a sphere the center of which is on the axis about which said member is pivotally supported, a seconddisc supported by said member, a crushing surface on said second disc cooperating with the first mentioned crushing surface, a hopper carried by'said member and communicatirig with said recess, said frame being provided with an oil reservoir in the base thereof and a plurality of oil recesses above said bosses, a tube communicating with said oil recesses, means'for delivering oil from said recesses to the bearings for. said shaft, a reciprocating pump for suppl'ying oilto one of said recesses from said reservoir, and means for operatively connecting said pump and said shaft whereby said pump is actuated upon the rotation of said shaft.

3. In a machine of'the character described, the combination of a frame, a shaft rotatably sup ported by said frame, a pulverizing disc carried by said shaft, a member pivotally supported by said frame,means operatively connected to said shaftand said member for oscillating said memher about its pivotal support upon the rotatioiio'f said shaft, a second pulverizing disc carried by said member cooperating with the first mentioned pulverizing disc, said frame being provided with an oil reservoir in the base thereof and an oil re ceiving recess near the top thereof, means for delivering oil from said recess to the bearings for said shaft, a pump supported by said frame for pumping oil from said reservoir into saidoil re- 

